Organic light emitting display and fabricating method thereof

Abstract

An organic light emitting display includes an insulating substrate having a first area, a second area, and a third area, an organic layer located in the second area, a pixel electrode located on the organic layer in the first area and the second area, and a partition wall including an opening exposing a portion of the pixel electrode. The organic light emitting display further includes an organic light emitting member located in the opening and a common electrode located on the organic light emitting member. The opening is disposed in the first area, and the third area includes a trench separating the second area from an adjacent second area.

1. An organic light emitting display comprising:
 an insulating substrate having a first area, a second area, and a third area; 
 an organic layer located in the second area; 
 a pixel electrode located on the organic layer in the first area and the second area; 
 a partition wall comprising an opening exposing a portion of the pixel electrode; 
 an organic light emitting member located in the opening; and, 
 a common electrode located on the organic light emitting member, 
 wherein the opening is disposed in the first area, and wherein the third area comprises a trench separating the second area from an adjacent second area. 
 
     
     
       2. The organic light emitting display of  claim 1 , wherein the trench is formed by removing a portion of the organic layer. 
     
     
       3. The organic light emitting display of  claim 2 , wherein a portion of the pixel electrode is located along an upper side of the trench. 
     
     
       4. The organic light emitting display of  claim 3 , wherein the trench is filled with the partition wall. 
     
     
       5. The organic light emitting display of  claim 4 , wherein the partition wall comprises polyimide. 
     
     
       6. The organic light emitting display of  claim 2 , further comprising a thin film structure comprising a transistor located between the insulating substrate and the organic layer. 
     
     
       7. The organic light emitting display of  claim 6 , further comprising a contact hole exposing a portion of the transistor, wherein the pixel electrode is located along a side and a bottom of the contact hole. 
     
     
       8. The organic light emitting display of  claim 7 , wherein the contact hole is disposed in the second area. 
     
     
       9. The organic light emitting display of  claim 2 , further comprising a blocking layer located on the organic layer and along a side and a bottom of the trench. 
     
     
       10. The organic light emitting display of  claim 9 , wherein the blocking layer comprises silicon nitride. 
     
     
       11. The organic light emitting display of  claim 1 , wherein the first area is disposed in the second area. 
     
     
       12. The organic light emitting display of  claim 11 , wherein the third area surrounds the second area. 
     
     
       13. An organic light emitting display comprising:
 a transistor located on an insulating substrate; 
 an organic layer located on the transistor; 
 a trench located in the organic layer; 
 a contact hole exposing a portion of the transistor; 
 a pixel electrode electrically connected to the transistor through the contact hole; 
 a partition wall located on the pixel electrode and comprising an opening; 
 an organic light emitting member located on the pixel electrode; and 
 a common electrode located on the organic light emitting member. 
 
     
     
       14. The organic light emitting display of  claim 13 , wherein the trench exposes a portion of the insulating substrate. 
     
     
       15. The organic light emitting display of  claim 14 , wherein the pixel electrode covers a portion of an upper side of the trench. 
     
     
       16. The organic light emitting display of  claim 15 , wherein the partition wall is located inside the trench. 
     
     
       17. The organic light emitting display of  claim 13 , further comprising a blocking layer located between the pixel electrode and the organic layer and along a side and a bottom of the trench. 
     
     
       18. The organic light emitting display of  claim 17 , wherein the partition wall is located on the blocking layer in the trench. 
     
     
       19. The organic light emitting display of  claim 17 , wherein the blocking layer includes silicon nitride. 
     
     
       20. A method of manufacturing an organic light emitting display comprising:
 forming a transistor on an insulating substrate; 
 forming an organic layer on the transistor; 
 removing a portion of the organic layer to form a contact hole and a trench; 
 removing impurities or moisture in the organic layer; 
 forming a pixel electrode on the contact hole and the trench; 
 forming an insulating layer on the pixel electrode and in the trench; 
 patterning the insulating layer to form an opening exposing a portion of the pixel electrode; 
 forming an organic light emitting member in the opening; and 
 forming a common electrode on the organic light emitting member.